Submerged water-heater.



N0. 703,2:5. Patented June 24, I962.

0. c. PINNEY.

SUBMEBGED WATER HEATER.

(Application fiXed Nov. 28, 1900.)

(No Model.)

71 75 Lzzleizlor;

JEWQL r/wz.

UNITED STATES ORES'IES O. PINNEY,

PATENT ()FFICE.

OF GLENVILLE, ()IIIO.

SUBMERGE-D WATER-HEATER.

SPECIFICATION formingpart Of Letters Patent N0. 703,215, dated. June 24:, 1902.

7 Application filed November 23, 1900. Serial No. 37,499. (No model.)

of which the following is a full, clear, and ex act description, reference being had to the accompanying drawings.

The object of the invention is to provide a cheap but highly-efiicient heateradapted to' be partly submerged in a body of water in a bath-tub or baptistry or analogous device for the purpose of heating said water;

It consists in the construction and combination of parts hereinafter described, and pointed out definitely in the claims.

Figure 1 is a central vertical section of a heater embodying my invention. Fig. 2 isa plan viewof the same. Fig. 3 is ahorizontal sectional view on the line 3 3 of Fig. 1. Fig. 4 is a horizontal section on the line 4 4 of Fig. 1'.

Referring to the parts by letters, A represents an outer sheet-metal drumhaving a closed and weighted bottom a and legs a, which project below the bottom and upon which the apparatus is supported. Within this drum is an annular sheet-metal waterchamber B, composed of two concentric tubes 1) b and the top and bottom plates b 19 which close the space between said tubes. The space within the tube 1) forms a vertical down draft-flue F, which is surrounded by said wa- (er-chamber 13. Vertical pipes 0 pass through the bottom a and through the bottom plate b of the water-chamber, and these pipes are open and admit the water freely into said waterchamber. A plurality of lateral1y extendedoutlet-pipes D are connected with the hot-water chamber near its upper end, and they extend out through the wall of the drum A. Thespace between the hot-water chamber and the outer wall of the drum constitutes a heating-chamber H, which is heated by suitable heat-generating devices. In this construction shown these heat generators are gasolene-burners E E, arranged in two horizontal rows within the heating-chamber. The air to supply the combustion enters through the downdraft-flue F, passes under the water-chamber and up into the heating-chamber H, passing out of the top thereof.

The. cold water enters the chamber B through the pipe 0, is heated by the heat in the chamber H, and consequently it rises and passes out through the outlet-pipes D. The circulation of the Water dueto the described construction greatly facilitates the heating of the body of water in which the apparatus is placed.

The burners E are connected with the annular pipes J J, which are secured Within the heating-chamber to the drum A.

nular pipes are connected by a supply-pipej with a gasolene-tank K, which is of annular form, and is secured in the upper end of the water-chamber. A cover M embraces this gasolcne-tank and rests upon the top of the hot-Water chamber and inclines upward toward the top of the drumA and extends over and rests upon the top of said drum. In this cover, near the drum A, are a plurality of curved slots m, through which the heat and products of combustion escape. These slots may be reduced in size by the action of the slidingdamper-plate N.

WVhen gasolene-burners are employed, it is necessary that they be heated beforethey are lighted to initiate the generation of gas from the gasolene. I prefer to employ alcohol for this purpose, and to that end an annular tank P rests upon the gasolenc tauk. A valve-pipe 19 extends downward therefrom in the downdraft-flue F and then into the heating-chamher, where its branches discharge into the cups 6 beneath the burners.

To set this apparatus into operation, the cover M must be removed before the burners can be lighted. WVhen after the burners are lighted the cover is replaced, the air flows down through the flue F, under the waterchamber, up through the heating-chamber to supply the combustion, and the products of combustion and unused air pass out through said slots.

Having described my invention, I claim- 1. In a submerged water-heater, the combination of a sheet-metal drum closed at its bottom, a closed annular water-chamber within said drum, the space within the chamber constituting an open down-flue, vertical Waterinlet pipes passing through the bottom of the drum and into the bottom of said water-chamber, laterally-extended water-outlet pipes con- These annected with'the water-chamber near its top and extending across the heating-chamber and out through the wall of the drum, and heat-generators located in the space between the water-chamber'and the drum and above the lower end of the water-chamber, whereby the air in the drum around said'water chamher is heated and caused to flow up andout through the top of the drum and air to supply the combustion is drawn down through the flue passing through said water-chamber,

substantially as specified.

I closed at its bottom, an annular closed wa- 2. The combination of a sheet-metal drum ter-chamber within said drum, the space within the chamber constituting an open down-l fiue, inlet-pipes passing'through the bottom of the drum and into the bottom of the water-chamber, laterally-extended outlet-pipes connected with'the water-chamber nearits top and passing out through the wall of said drum, a plurality of burners located in the space between the drum and water-chamber,

and above the lower end of thelatter and pipes lying in; the down-flue for supplying 'fuel to said burners, substantially as speci- 3. The combination of a sheet-metal drum closed at itsbottom, a closed annular Waterchamber in said drum, the space within the chamber constituting an open down-flue, in-

let pipes connected with the bottom'of the water-chamber and extended out through the bottom of the drum, outlet-pipes connected with the water-chamber near its top and exemled out through the side of the drum, a plurality of burners located in the space bei' tween said water-chamber a'nddrum, an an-' i uular liquid-fuel tank secured to the upper 1 40 end of said water-chamber, and pipes leading through the down-flue connecting said fuel-tank with said burners, substantially as specified.

4. The combination of a sheet-metal drum closed at its bottom, a closed annular waterchamber in said drum, inlet-pipes connected with the bottom of the Water-chamber and I extendedoutthroughthe bottom of the drum, outlet-pipes connected with the water-chamber near its top and extended out through the side of the drum, a, plurality of burners located in the space between said water-chamher and drum, an annular liquid-fuel tank secured to the upper end of said water-chamber, and pipes connecting said tank with said burners, an annular alcohol-tank also supported by said water-chamber and having pipes leading to the drip-cups of said burners,

substantially as specified. Y Y

5. The combination of a sheet-metal drum chamber in said drum, inlet-pipes in said closed at its bottom, a closed annular water-,

water-chamber passing through the bottom of the'drum, outlet-pipes to said chamber connected with it near its top'and extended out nular inclosed vertical water-chamber eX- tending nearly to the bottom of the drum" with its open inner space which acts as a downdraft-flue, andburne'rs located in the space between said drum and the water-chamher and above the lower end of the latter, 7

substantially as specified.

In testimony WhereofI hereunto .affix my signature in the presence of two witnesses.- ORESTES C. PINNEY.

\Vituesses: V ALBERT H. BATES, 1-1. M; XVIsE. 

